Edge turning and pressing machine.



H. A. KOENIG..

EDGE TURNING AND PRESSINGl MACHINE.

APPLICATION FILED MN. 3.1918.

Patented Aug. 6, 1918.

3 SHEETS-SHEET I.

lllli-mlnmm l s gym/TOR. @ffm/vnf.

n s Pnsns co., puamurua. wAsnmomN. n. c

H, A. KOENIG. EDGE TURNING AND PRES-SING MEACHVINE. APPLICATION FILED 1,AN.8.1918.

` 1,275,044. atentedug. 6,1918.

3 SHEETS-SHEET 2.

H. A. KOENIG. EDGE TURNING AND PREssING NmcHrNE.

APPLlCATlON HLED1AN. 8 |918.

Patented Aug. 6, 1918. 3 SHEETS-SHEET 3 l N l lf y:

25 table and as the latter becomes very hot 30 are Vobtained without'the disadvantage of HARRY, a KoENIG, or PHILADELPHIA, PnNNsYLVANIIL.`-

nnen TURNING AND PRiissING ivIAcPIINE.A

Specication of Letters Patent.

Patented Aug. e, 1918.

Application led January 8, 19418.'` Serial No. 210,859. 1 i

To all whom t may concern#v Be it known that I, HARRY A. KoENIG, a citizen of the United ',Statesfresiding at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a certain new and useful Edge Turning and Pressing Machine, of which'the following is a'specication. v

The'present invention relates to an edgeturnmg and pressing machine and has for an object to provide means 'for -accurately turning the margin of a piece offab'ric and forming a crease about the periphery ofthe fabric whereby the turned margin remains in place without basting andthe fabric article can be lsewed to the garment through the folded margin. In devices ofthis character as heretofore employed, the expedient of heating the table upon which theifabric is placed has'been tried in lorder to form i. a more perfect crease to vprevent the lfolded side of the fabric and thus margin from opening up after it has once been operated upon. Such heating devices have proven Yunsatisfactory however, because the face of the fabric must rest upon the in use, the fabric is scorched and burned so that the losses from this defect'have been considerable. In my 'present invention, all the advantages of a heated pressing means having fabrics spoiled -by being scorched upon the hot table, since the table of my invention remains cool at all times and the applied heat actsnpon the back or wrong eliminates damage."-

For the purpose of illustrating my invention, I have 'shown in the accompanying drawings one form thereof which is at presg ent preferred by me,' since the same 'has been found inpractice to give satisfactory and reliable results, although it is to' be understood that the various instrumentalities of which .my invention consists can lbe variously arranged'and organized and that my invention 'is not limited to the precise arrangement'and organization'of the instrumentalities as herein shown and described.

`Referring tothe drawings:

Figure 1 represents a side elevation of an I edge turning machine embodying my inven Fig.r2 represents a plan of the same. Fig. 3 represents a bottom plan detail of the burnerconstruetion.

` Fig. t represents the shield construction for the burners.`- `v Fig. v5jrepresents' a bottom plan ofv the machine table.

Fig. represents a section yon line 6-6 of FigQq L f. u

l @designates the'frame ofthe machine whichl forms a substantial supportfor the table 2 'uponrwhi'ch the work or articles to be turned and pressed are placed for proper manipulation'by the machine elements. In

orderto hold the workin position upon the table 2, alever arm 3 is pivoted to the table as rindicated (at 4 and carries on its inner4 end a'rod4 5 which in lowered posicenter'of thea-table. This rod 5 is adjust- 'ably connected to the arm 3 by a set stud Gand terminates at one end lin a laterally turned l'part forming a handle 7 by which `tionof the arm 3 is substantially over the 3f the arm and its adjunct-s are moved'as de- ':f

sired. The other end of the rod 5 is adapt- 'edto receive a'colla'r orbushingS which is removably held by a set. stud 9, while the bushing is fiXedto and forms a part of a' plate die l0, the one here shown being in the shape of a pocket.` lIt will be understood that there are a number of such dies each of a shape corresponding to the contour of the article, the edgesof which are to be turned and the rod 5VV may thus be equipped with 3,

any selecteddieaccordingv to requirements. The arm 3 is provided with a counterweight 11 for suitable balancing of the parts as will beunderstood. A buffer 46 forms a part of the counterweight 1.1 to prevent jarshould 5;., the arm 3 be' raised sothat the end comes Y into contact with the table. The ,plate die is preferably of relatively thin material and its -outer periphery vedge follows the contour of the article but is` spaced from the -i edgeof the article all the way around in order that the portion of the article or goods which projects beyond the die may be folded or turn'edback in the manner desired. This turningor folding ofthe edge of the article is accomplished in theI present instance by a plurality ofdies 12 which are movable toward and away from the edge of the plate die 10. .InV some instances,`but one of the dies l12is necessary for the desired purpose 1- so that'the invention is not to lbe restricted to a plurality as shown. Y

In view of the fact that the dies 12 andl the adjuncts thereof are all of similar` rconstructionjand operated ina like manner, the

present description will deal with butwone and like parts of the other dies will be provided with corresponding reference numerals. As here shown, the rdie 12 is substantially of Y-form having a flat bottom surface adapted to slide readily upon the table and having an edge 13 shaped to conform to the contour of the edge of the article or material it is adapted to engage. This edge 13 is juxtaposed to the edge of the die 10 and is suitably beveled, as indicated at 14, so thatthe material edge rides upon this surface lll and can then be turned back over the die 10 as the die 12 continues its movement.

15 designates a slide guided by ribs 16 of the table 2 and detachably connected to the die 12 by stud bolts 17 so that differentv dies 12 may be substituted as desired. A bridge piece 18 is bolted from one rib 16 to the other to form a top bearing for the slide 15 and prevent its displacement. The slide 15 is reciprocated at will by a suitable mechanism concealed beneath the table 2 and consisting in the present instance of a pivoted star wheel 19 having radial arms 20 and a lug 21 to which latter there is connected a link 22. This link 22 joins a reciprocable bar 23 mounted upon the lower surface of the table 2 and actuated by a link 24 and bell crank connection 25 with a rod 26 which is connected to the pivoted treadle lever 27. This construction provides for turning the star wheel 19 in one direction and a spring 23 bearing against the bar 23 returns the parts to normal position when the treadle is released. 29 designates guide lugs on the table to form bearings for the bar and maintain it in proper alinement. The stroke of the bar 23 may be varied or adjusted as desired by a feed screw 30 threaded through a, xed part 31 and bearing against a suitf able abutment 32 or the like on the bar 23.

Turning now to the transmission of motion from the star wheel 19 to the respective slides 15, it will be seen by reference to Fig. 5, that links 33 are connected respectively by pins 34 to the respective slides 15 and consequently as the star wheel turns the several slides 15 are simultaneously moved either toward the center of the table or away according to the direction of movement of the said wheel 19. The table 2 is provided with slots 35 to receive the respective pins 34e and permit relative movenient between the slide and table as will be apparent. y

In the present construction, each of the turning dies is provided with a heating means and as these, are similar in construction, the description will be limited to one and like reference numerals applied to all.

Referring to Fig. 3, 36 designates, generally, a burner casing preferably of a shape following the configuration of the die and therefore as here shown comprising two diverging heat chambers 37 with an open bottom so that the flame from the two-way burner 38 im'pinges directly upon the upper surface of the die. The burner is suitably secured to the die by bolts 39 or equivalent fastening means and as its uppernbounding walls are curved and closed to the exterior, the heat is deflected and concentrated where desired upon the dies. Air to support the combustion is admitted by way'of rear openings 40 as will be apparent. 41'designates an inlet supply pipe for gas which is connected to any suitable source 1though Ait should be noted that the gas is .under regulated pressure to give the desired heatingef feet. 42 designates shields suitably shaped to cover the respective burners vand thus present relatively coolv exterior surfaces and at the same time the heat is retained` in the walls of the burners. These shields are secured by studs 13 passing vthrough the apertured ears 44 as will be understood though any well known this purpose. The operation of the lIma# vchine is as follows: A shaped piece of material l5 is located upon the table 2 beneath the overhead die 10 which is then brought down by hand into contact relation with the material. The die 10 as previously explained is of smaller dimensions than the material so that the latter has a continuous exposed margin projecting beyond the peripheral edge of the die. Now that the material is properly located and clamped, by holding the die 10 in contact with it, the foot treadle 27 is pressed down and the several dies 12 advance simultaneously toward the stationary die. 10 and finally, not only inclose the die 10 on all its side edges but at the same time, pick up the exposed material and turn it back over the top surface of the die 10. It will be understood that the burners for the dies have been lighted and the means may be employed for ioo dies 12 heated to the desired degree before they are brought into engagement with thematerial. In consequence of this, the turned material is turned, heated and pressed at'one operation throughout its peripheral length and when the dies 12 are backed off, by releasing the treadle 27 and the die 10 lifted, the material may be removed in finished con.; dition in so far as vthe edge turning is concerned. By this construction, it has been found that the edge is turned and pressed so accurately as to the line of the fold that basting of the turned part is unnecessary and the article may be sewn directly to the part of which it forms a portion.

It will now be apparent that have devised a complete unitary machine adapted for the purpose intended wherein a fabric of predetermined shape may have its margin turned in the required manner and so pressed as to be retained in folded condition without subsequent basting and wherein the lturning and pressing operations are carried out simultaneously and Without danger of scorching the body of the fabric.

It should be noted also that the burner shields are so located that any excess material of the fabric being folded cannot come into direct contact With the top of the burners and thus become damaged. While the burners are in the present instance shown as gas operated it should be understood that the invention is not to be construed as limited to this particular heating means as obviously any Well known means for directing heat upon the dies may be em-1 ployed.

What I claim is:

l. In a machine of the character stated, a table, a die adapted to hold a piece of fabric upon said table, a plurality of movable dies mounted for sliding movement on said table and adapted to fold the edge of said fabric over said holding die, gas burners respectively mounted upon said movable dies t0 maintain said movable dies in heated condition, means to shift all of said movable dies at will and means to concentrate the burner heat upon the respective dies.

2. In a machine of the character stated, a table, a die of relatively thin material adapted to hold a piece of fabric upon said table, said die having a configuration conforming to the contour of said fabric and being of a size to leave a `marginal edge of material projecting beyond said die, a plurality of movable dies slidably mounted upon said table and each having an edge conforming to the shape of a portion of said fabric, gas burners for heating the respective dies and means for simultaneously moving said dies and burners toward said holding die Whereby the fabric edge is turned over said holding die and pressed.

3. In a machine of the character stated, a table, a die of relatively thin material adapted to hold a fabric upon said table, said die having a configuration conforming to the contour of said fabric and being of a size to leave a marginal edge of material projecting beyond said die, means movable at Will to locate said holder With respect to said table7 a plurality of movable dies slidably mounted upon said table, each having a beveled edge conforming to the shape of a portion of said fabric, gas burners for heating the respective dies and means for moving said dies and burners toward said holding die whereby the fabric edge said holding die and pressed.

4. In a machine of the character stated, a table, a die of relatively thin material adapted to hold a fabric upon said table, said die having a configuration conforming to the contour of said fabric and being of a size to leave a marginal edge of material projecting beyond said die, means movable at will to. locate said holder with respect to said table, a plurality of movable dies slidably mounted upon said table, each having a beveled edge conforming to the shape of a portion .of said fabric, gas burners for heating the respective dies, means for moving said dies and burners toward said holding die whereby the fabric edge is turned over said holding die and pressed and means to prevent the material from contacting With the top surface of said dies.

5. In a machine of the character stated, a table, a die arranged to hold a piece of fabric upon said table, a plurality of dies mounted for sliding movement on said table to engage and fold the edge of said fabric over said holding die, gas burners respectively mounted on'said movable dies tomaintain said movable dies in heated condition, means to shift all of said movable dies at will and a plurality of shields respectively secured to said movable dies for defiecting the iiame of said gas burners respectively upon the top of said movable dies.

6. In a machine of the character stated, a table, a die arranged to hold a piece of fabric upon said table, a plurality of dies mounted for sliding movement on said table to engage and fold the edge of said fabric over said holding die, gas burners respectively mounted on said movable dies to maintain said movable dies in heated condition, means to shift all of said movable dies at will, a plurality of shields respectively secured to said movable dies for delecting the flame of said gas burners respectively upon the top of said movable dies, and means respectively inclosing said burners to prevent said fabric coming in contact With said burners. Y

In testimony whereof, I have hereunto signed my name.

HARRY A. KOENIG..

Copies of this patent may be obtained for tive cents each, by addressing the Gommissioner of Patents, Washington, D. C.

is turned over 

